So far, your answers indicate that you have a new or different headache without any fever, symptoms of infection, or stiff neck. You also indicate that you are thinking clearly without confusion.
Next let's consider whether you rarely get headaches or you do get headaches quite often. People who have migraine or get other types of headaches will almost always experience at least one headache that is more severe or feels a little different than prior headaches.
Do you have a history of migraine or recurrent headaches?